Ore dump-car.



A. R. CHAMBERS.

ORE DUMP CAR.

APPLICATION FILED AUG.H. 1913.

h 1 3 wgw w Patented Apr. 20, 1915.

ALLISON R. CHAMBERS, OF NEW GLASGOW, NOVA SCOTIA, CANADA.

ORE DUMP-GAR.

niaaeea.

Specification of Letters Patent.

Patented Apr. 24H, rein.

Application filed August 11, 1913. Serial No. 784,350.

the following is a full, clear, and exact description.

This invention relates to improvements in cars and particularly to that class of cars used for conveying ore, coal and the like, and the object is to provide a car of the hopper type having an opening entirely unobstructed from side to side, so that large masses of material may be discharged without difficulty.

A further object is to provide an improved means for operating the floor doors with a minimum of efiort.

A still further object is to provide a car having no underframe in the generally ac: ceptedsense of the word, so that the maximum of space will be left for the movement of floor doors.

Another object is to provide an underhung car so as toattaln a maximum of stability for use on the narrow gage-roads in and around mines. a

To accomplish the above objects, T provide a car body having the sides thereof stifiened to form plate girders which are connected at the ends by similarly formed girders, which serve the combined purpose of end sills and body bolsters. The floor with its" doors is mounted below the sides, the doors being preferably integral from end to end of the car and so mounted that'almost their entire weight is carried at all times by the supporting links, so that the doors may be very easily opened or closed. The door operating mechanism is concealed in trans.- verse pockets which extend from side to'side of the car.

In the drawings which illustrate the invention:Figure l is a partial side elevation of the car showing a small portion in vertical section at the longitudinal center. Fi 2 shows in the upperpart thereofaa horizontal section on the line 2-2, Fig. 1, and, onthe lower part thereof a plan ofethe car body. Fig.-' 3 shows on the left a vertical a section on the line 3 Fig. 2. Fig. A is a cross sectional View taken on the line 4LA, Fig. 2.

Referring more particularly to the drawings, 5 designates the side plates of the car body which are stifl'ened at their upper and lower edges by angles 6 and 7 respectively. These side plates are further stifiened by vertical angles 8 and 9 secured to the outer and inner surfaces respectively of the sides. The outer angles 8 form the equivalent of side stakes and extend between the upper and lower angles 6 and 7, while the inner angles 9 preferably coincide with the outer angles, but extend below the lower longitudinal angles 7 and are bent toward the center line of the car to support the sloping floor plates 10, which with'the doors 11 form the hopper bottom of the car. If desired, these 'anglesmay of course be replaced by T-section or any other form of section commonly used for side stakes and the like. Adjacent ends of the side plates are connected by pairs of transverse plates ranged in pairs spaced a short distance 12 which are suitably stifiened and perform the combined functions of end sills and body bolsters. The truck bearings 13 are secured to the lower edges of the plates 12 and also to the draft rigging 14. The ends of the body proper are formed of sloping plates 15 which extend from the upper edges of the sides downwardly to the sloping floor plates and doors. These end plates are rigidly secured to the side and floor plates and are suitably, stifi'ened. To insure the maximum of rigidity and to prevent diagonal racking and twisting, the lowep edges of the side plates between the plates 15 and 12 are connected by horizontally disposed plates 16.

At regular intervals in the length of the car, transverse plates 17 are provided arapart and extending from side to sideof the car and from the upper edges of the sldes to the floor plates and doors, as clearly seen in Figs. 1 and 3. For'the sake'of lightness,

these plates may have their upper edges we cut away as shown. The space between the plates is closed at the top by a channel 18 secured to each plate 'and'at the ends to the top angles 6. The floor plates 10 do not cross section onthe line 3"-, and on the right traverse the space between each pair of 105 transverse plates 17 so that open bottomed pockets for the reception of the door operating means are provided extending entirely across the car body. The plates 17 forming these pockets greatly strengthen the car and with the end plates 12 and floor plates form the body into a huge box girder of enormous strength. The doors 11 each extend from end to end of the car in one piece and are supported by hinged arms 19 shaped as shown in Fig. 3 and rigidly attached to the doors. These hinge members 19 project upwardly into the pockets between the plates 17 and are pivoted at 20 approximately above the outer edges of the doors, so that the tendency of the doors if released is to swing to partially open position.

Bearings 21 are secured to the lower edges of the sides oppositethe pockets 17 and carry the revoluble shaft 22 provided with curved arms 23,. which are connected by links 24 with the hinge members 19. The outer ends of the links,'that is the ends adjacent the levers 23, rest during closed door position-upon suitably positioned stops 25. When the floor doors are closed, the links 24 are carried downwardly until they rest upon the stops 25 in which position the connection between the link 24 and lever 23 is below the line passing through the inner end pivotal center of the link and the \shaft center. The weight on the door tends to move the same outwardly, by a downward movement of the link and lever motion which is in reality a toggle mechanism. This downward movement is resisted by the stop. It

I will thus be seen that the closed condition texture.

of the car doors does not depend upon any locking mechanism applied to the shaft 22,

so that a possibility of accidental opening is reduced to a minimum, To open the doors, the shaft 22 is rotated to throw the arm 23 andlink 24 up into the pocket 17*, as shown on the left hand side of Fig. 3. When once released, the door opens by gravity and assumes a position in which it prevents the contents of the car from obstructing the track, this position being outside of and substantially parallelwith the floor plates. The doors 11 overlap slightly as shown in Fig. 4 thus preventing the escape of the finer portions of the load. The doors are also strengthened by suitable longitudinal members 27 and transverse members 28.

' From the foregoing description, the operation of the device will be readily understood, and at the same time it will be seen that the invention provides a car of great strength havlng a low center of gravity and very large unobstructed discharge openings which will handle material such as coal, ore and like materials of very irregular size and mine use, andthe drawings show a mine tension of the side members to receive buf- The car is'specially adapted for fers and standard draft rigging would adapt the car for general railroad use. The underhung construction, which is clearly shown in Fig. lgives a low center of gravity and great stability, which is very essential on narrow gage mine railways, and is also a great advantage in large capacity cars for general railroad use. The doors are very easily operated, and owing to the extremely strong and simple construction of the operating gear and the lack of any shaft locking mechanism, the car possesses the maximum of simplicity and strength combined with a minimum of cost.

For convenience in loading or unloading a car by hand, doors 29 may be formed in the vertical side portions of the car in the rectangular spaces between the stiffening members 6, 7 and 8. These doors may be hinged at the top so as to swing both inwardly and outwardly, as shown in Fig. 3, and may be secured by any suitable form of latches.

Having thus described my invention, what I claim is p 1. A car body having the sides thereof stifiened to form longitudinal body supportting members, and transverse members connecting adjacent ends of the sides and forming combined end sills and body bolsters.

2. In a car, strengthened body side members forming body supports, floor members secured to the lower edges of said side members, transverse plates arranged in pairs be tween the side members, forming pockets, longitudinal floor doors, and door supporting and operating mechanism located in said pockets. 5)

3. In a car, strengthened body side members forming body supports, sloping ends connecting the side members, transverse plates arranged in pairs between the side members and forming pockets, floor plates extending between each pan of transverse plates, floor doors extending from end to end of the car, and door supporting means.

pivoted between each pair of transverse plates.

4. In a car, the combination with the side and end plates of floor plates sloping from the side plates toward the longitudinal axis of the car, and floor doors normally occupying'the space between the floor plates and laterally movable to a position below the floor plates and outside of the floor opening.

5. A car comprising side members, fixed floor members secured to the side members, hollow transverse members connecting the side members and floor members, laterally movable floor members, and supporting means therefor located in and supported by said hollow transverse members.

6. In a car, strengthened body side members forming body supports, floor members secured to the tower edges of said side memand eperating mechanism located in said bers, transverse plates arranged in pairs bepockets. 9 tween the side members, forming pockets, In witness whereof, have hereunto set the ends of said transverse members being my hand, in the presence of two witnesses 5 equal in height to said side members and be- ALLISON R. C

ing cut away at the center, curved channel Witnesses: members closing the top of said pockets llon- J. B. MeLnoN, gitudinal floor doors, and door supporting 1L. MAoneN. 

